A little over a year ago, I posted dark-field histograms from the Sony a7RII with FW 2.0, which was the first firmware release to support uncompressed raw. Today I’m doing a similar post for FW 3.3. You might want to open up both posts in separate tabs to see the differences. The green histograms are… [Read More]
Archives for December 1, 2016
Reverse engineering the Sony a7RII long exposure spatial filtering
We have seen here and here that the Sony a7RII running firmware 3.30 spatially filters raw images prior to writing them to the flash card at shutter speeds slower than 3.2 seconds. The camera did similar filtering for bulb exposures in earlier releases. A DPR poster earlier proposed that the algorithm Sony used was the… [Read More]